Latch for swinging doors.



P. ZIGANEK & W. WILKINSON.

LATGH FOB SWINGING DOORS.

APPLIOATION FILED JUNE 8, 1914.

Patented Sept. 22, 1914.

ZlwuewtmS Wi t names THE NORRIS PETERS co nrurrla, WASHINGTON. o. r

, e bimabjmmexlm F ANKW. wrLKrNsoN, be ween: TOLEDOfOHIOh '1 pressed keeper engaging member is provided, means being provided to ad ust the .Be-"it known thatwe, FERDINAND the county of Lueasiand State ofOhio, have M I ad to the accompanying ldrawingsw "This 'inventionlrelatesto new andus'efut improvements in .door' latches, and relates particularly ':to ant-eh adapted for use in Connection with swinging doors, such as, re-

frigerator doors "or the like.

An Ob'ect of .thisyinvention lis the p ro-e vision of a'-,la t 'ch for swingingdoors which will automatically. Slockin'gly. engage the is movedto vclosed position.

keeper carried on the doorframe as the door further ob'ectjof this invention is the provision of aqlatch' which-a spring tension of the springs, so. as toregulate the force necessary :to be usediin closing: and and opening thedoor.

combination, and arrangement of parts "to be hereinafter more fully described, claimed,

.- and illustrated in the accompanying drawing, in which,

Figure 1v is, a

vertical sectional view of the same; and Fig.

" 3 is an elevational view of an alternativeformthereof.

; Referring more particularly to the drawing, the numeral 1 designates the latch cas- =ing,- the casing being enlarged at' its outeren' d as, at 2, and the top walloflthe casing .whichconnects the enlarged portion thereof to the smaller inner portion being inclined has at 3 to form' a stop shoulder. ,Slidably mounted in theenlarged portion 2' of the whereby the inward movemen't ofthe guide member is limited. The member 4: is hollow, and the forward end thereof receives a porp-tion of a latch roller 6, the roller ,having'a shaft 7 mounted therein, the opposite ends of which project beyond the opposite sides specification of Letters Patent.

ZIGArIEK and FRANK V; WILKINSON, citizens of the United States, residing at. West Toledo, n

With these and other objects view, our [invention consists inthe novel construction,

. horizontal sectional Iview Q through four mproved dev ce Fig. 21 1s; a

Of the engage the 'side walls ofthe guide ,niember, so that. when the roller 6 1s :movedinwardly, the" member .4: will also be actuatetlivithini th'ecasing. The forward endof the casing 1 is provided on its oppo s te 'sidesf with'inwardly extending seats) 8 to I receive the: oppositeends of the shaftTwhen the roller is in its outerino'stiposition, the

seats receiving the shaft of the roller when substant ally one-half of the same is pro 'jected outwardly of the casing "so'thatlout Ward movement of the roller with relation walls of the casing. VwTjo normally hold the outermost position so thata' portion-of the roller is projected. from the casing, rods 10 are secured at one' endin the reanend of .the g memben M1, and extend ,rearwardly within 1 thevcasing and are slidable' attheir rear ends ovithin an adjusting. member 11. Helical: springs 12 are disposedaround the rodsilOtoibear at one end against the innerend ofthezguidemember and attheir other-. (end against the adjustingmember '11, the adjustingfimemher'll comprising a hollow, I l

85 casing at its inner-end The inner wallet I block which closely. engages the walls offthe the; blotkll-has threaded opening 13;

member 4. {in its v v. a r mm d 9. f; ,-App1icationfi1ed June 8,1914. Seria1 No.843,82 7r- I to the casing is limited. To reduce the sactlon as the n ember l slideswithinthe fleas ng-gcylindrical rollers 9mare 'journaled Qin the member to engage .the upper and lower formed therein in which the threaded porhavingl anenlarged head 15 foi nied thereon between the threaded portion and the head of the screw, the" head ofthe screw projecting through an opening in the rear end of the casing and the enlarged 'portion 15 of the screw engaging theinner face of the wall to prevent the screw from passing outwardly of'the casing. A keeper 16 is pr0-,

her a. When the door isc'losed, the projecting portion of the roller 6 engages the ftion of a screw 14 is engaged the serew l l outer edge' o'f the keeper 'ldwh ereby the' roller'h forced inwardly within the casing, and the member L iS moved inwardly p -t1on, what We desire against-the tension of the springs 12 until the roller 6 passes the forwardedge of-the keeper, whereupon it is again forced outwardly to engage within the keeper, where bythe door'is held against accidental open ing. It will be seen that as' the member 4 is moved forwardly and rearwardly within the casing, the frictionis taken up by the rollers :9 which engage the-upper and lower Walls ofthe casing, and forward movement of the guide member is limited by reason ofthe, engagement of the walls thereof with theopposite ends of the shaft 7 ofthe roller, which, 'inturn, engage the seats 8 which prevent the roller from moving entirely out of the casing. It will also be-readily understood that the tension of the springs. 12 may beadjus'ted by turing the adjusting screw la n-so. as to move the block. l1 -either for War'dly for rearwardly within the casing, the

block 11 heingmoved forwardly in the casging,fas the tension of the springs become weaker owing to continued use. I

i In Fig. 3 of the drawing we have illiis tra'tedan alternative form of our invention, this fem-n including. a pair of swinging doors 17 which close. against the-acentr'al post. 18, from which projects an outwardly extending keeper b'olt'19. Secured upon the outer.:face, of each door 17, adjacent its o'p- I posing edges, is a casing l in which the ;latch mechanism hereinbefore describe'dfis disposed, the roller 6 projecting forwardly of each casing'for engagement in the reces's'esQO formed in the opposite sides of the v bolt" 19.

' mgis-tapered as at 21, so that the rollers 6 will The outer extremity of the bolt easily ride over the end of the bolt to engage inthe recesses 20 when-the doors are the doors'f againstfi'acci'd ental "guide member and engaged thereby, rearwardly extending pins carried by. said uide member, a hollow adjusting block slid; mounted in'th'e rear end of. the casing and. having the rear ends-of said pins extending therein, helical springs-engaged around J ably 7 said pins' for engagement at one'end against":

said adjusting block and at' their other agains t ,-saidguide a; member whereby ,the guideni'ember isnOrmally forced forwardly vis within the casing, means for limiting outward m vement 'ofisaid roller, the rear wallof-said block havingi a threaded opening thereln, the rear wall of said casing having an 'openmgLformed theremin almement withsaid threaded opening," 'ascrew threads" ably disposedthrough saidlthreaded open-n ing, saidscrew having aiiienlarged portion engaged between the rearend wall of said block and the rear wall cof said casing, the head of said screw projecting through the opening "in :the rear. wall 'of said"'ca sing,, whereby the screw may be rotated toinove the-block in the casing, to regulate the-tern; sion of said springs. In testimony whereof we; "hereunto aflix; our signatures in the presence of twowit nesses.

.FERDINANDZZIGANEKQ 5 FRANK w; WILKINSON.

"' VVitn'esse's': l

' CEA. VVERDER," I

OSCAR-BEDDING.

v (flipies olthispateiit may be obtained for five cents each, vby afld re's's ing the Commissioner {errata 155,. WashingtomDfiG. 

